Smoke-consumer.



G. ONEIL.

SMOKE GOMSUMER.

. ,1914. 1,131,94 Patented Mar. 16, 1915.

2 SHEETS SHEET 1 mm M M WW 1? Y E ATTYE G. ONEIL.

SMOKE COMSUMEH.

APPLICATION FILED 0GT.19, 1914.

Patented Mar. 16, 1915.

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GEORGE ONEIL, OF IVIONCTON, NEW BRUNSWICK, CANADA.

SMOKE-CONSUMER.

Specification of Letters Patent.

Patented Mar. 16, 1315.

Application filed October 19, 1914. Serial No. 867,441.

To all whom it may concern:

Be it known that I, GEORGE ONEIL, of the town Moncton, in the Province of New Brunswick, Dominion of Canada, have invented certain new and useful Improvements in Smoke-Consumers, of which the following is a specification.

This invention relates to smoke consumers and fuel savers and to that type in which the smoke is returned to the boiler fire box, and the objects of the invention are to obtain a more complete combustion of the fuel thereby minimizing the amount of smoke, to increase the efficiency of the boiler, to effectively mix the returned smoke with air so obtaining a highly combustible mixture and other objects which will be made clear hereafter and it consists essentially of the improved construction of smoke consumer particularly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings: Figure 1 is a perspective view of a boiler part being broken away showing the construction of the improved smoke consumer. Fig. 2 is a sectional view of the front of the boiler showing the pipes in elevation. Fig. 3 is a sectional detail of the smoke stack and smoke distributing cone located therein.

Like characters of reference refer to like parts in the several drawings.

Referring to the drawings A represents a boiler having the improved smoke consumer B attached thereto, the said boiler being of any usual and convenient construction having a smoke box 1 in the front thereof and being also provided with a smoke stack 2 extending upwardly therefrom, such boiler being well known in the art requires no further description.

The smoke consumer B consists of U- shaped pipes 3 and 4. the parallel arms of which are horizontally disposed, the upper parallel arms 5 and 6 being designed to project through the brick work surrounding the boiler and extend into the upper part of the smoke box 1, the lower parallel arms 7 and 8 being designed to project through the brick work surrounding the said boiler and extend beneath the grate C thereof. The lower parallel arms 7 and 8 are provided with a branch connection 9 and 10 open at the outer ends in which the air valves 11 are designed to be seated, such air valves being provided with steam jets 12 and 13 extending through the center thereof and about which the said valves are designed to be rotated, the supply of steam to the said steam jets 12 and 13 valves 14: and 15 which are suitably connected to the boiler. Steam jets 16 and 17 are also provided which extend into the open ends of the upper parallel arms 5 and 6 of the U-shaped pipes 3 and 1, such steam jets being suitably connected to the T-piece 18 which is further connected to the steam pipe 19. The admission of steam into the pipe 19 1s suitably controlled by the valve 20 which is connected to the boiler A. disposed cone 21 is located in the lower end of the smoke stack 2, such cone being designed to act as a baffle for the smoke to prevent an excess of the same passing directly to the stack. The ends of the upper parallel arms 5 and 6 of the U-shaped pipes 3 and 4., the steam jets l6 and 17, the T- piece 18 and part of the steam pipe 19 connected to the said T-piece are designed to be 1coveped by the hood 22 located in the smoke )ox In the operation of the boiler the smoke passes through the fire box D to the back of the boiler being returned to the smoke box 1 through the tubes 23. The valve 20 is opened allowing steam to issue from the steam jets 16 and 17 into the U-shaped pipes 3 and 4 thereby causing an entraining action drawing the smoke into the said Ushaped pipes and delivering the same beneath the grate C.

To obtain a proper combustible mixture the valves 11 are opened permitting air to flow into the lower arms 7 and 8 of the U- shaped pipes 3 and 4, this inflow of air being accelerated by means of the steam jets 12 and 13 located in the said pipes.

From this description it will be seen that the use of such a smoke consumer on a boiler brings about a much more complete combustion of the fuel while the intermixing of the smoke with steam and air permits of a highly intimate and combustible mixture being obtained before the said smoke is fed back beneath the grate O of the boiler.

As many changes could be made in the above construction, and many apparently widely different embodiments of my invention, within the scope of the claim, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specificabeing controlled by the A downwardly tion and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

A smoke consumer comprising in combination with a boiler, smoke stack, grate and smoke box, of brick work surrounding the same, U-shaped pipes the parallel arms of which are horizontally disposed, the upper parallel arms being designed to project through the brick work surrounding the boiler and extend into the upper part of the smoke box, the lower parallel arms of the pipes being designed to project through the brick work surrounding the boiler and beneath the grate thereof, branch connections for the lower arms open at the ends, air

valves in the outer ends of the branch connections, steam jets extending through the center thereof and discharging into the branch connections, valves controlling the steam jets in the lower parallel arms, a T- piece connected to the upper steam jets and to a supply of steam, and a hood in the smoke box covering a portion of the tubes and the open ends of the upper arms.

In witness whereof I have hereunto set my hand in the presence of two Witnesses.

GEORGE ONEIL.

Witnesses:

Framers P. MURPHY, FRANCIS J. SWEENEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. o 

